At schools, campuses, sporting events, and retail facilities, those thoughts ring out day after day. We have watched with horror the increasingly more frequent news of violence at establishments we once thought "safe" from wanton violence. One has to just scan the news to see that no place is immune from any type of random act that injures or kills innocent civilians, be it a movie theater, retail mall, sporting event, school, or church. In this column, let's take a look at a few basic elements.